package com.heima.media.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.heima.common.dto.PageResponseResult;
import com.heima.common.dto.ResponseResult;
import com.heima.common.dto.User;
import com.heima.common.enums.AppHttpCodeEnum;
import com.heima.common.minio.MinIOService;
import com.heima.common.util.MediaThreadLocalUtil;
import com.heima.media.dto.WmMaterialDto;
import com.heima.media.entity.WmMaterial;
import com.heima.media.mapper.WmMaterialMapper;
import com.heima.media.service.IWmMaterialService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.util.Date;
import java.util.List;

/**
 * <p>
 * 自媒体图文素材信息表 服务实现类
 * </p>
 *
 * @author gq
 * @since 2022-06-22
 */
@Service
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements IWmMaterialService {
    @Autowired
    private MinIOService minIOService;
    /**
     * 上传图片
     * @param file
     * @return
     */
    @Override
    public ResponseResult<WmMaterial> upload(MultipartFile file) {
//        从本地线程中获取用户信息
        User user = MediaThreadLocalUtil.get();
        if (user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
//        使用minIO上传图片，获取上传地址
        String url = minIOService.upload(file);
//        构建WmMaterial对象
        WmMaterial wmMaterial = new WmMaterial();
        wmMaterial.setUserId(user.getUserId());
        wmMaterial.setUrl(url);
        wmMaterial.setType(0);
        wmMaterial.setIsCollection(false);
        wmMaterial.setCreatedTime(new Date());
//        保存WmMaterial
        this.save(wmMaterial);
        return ResponseResult.okResult(wmMaterial);
    }

    /**
     * 分页查询素材列表
     * @param dto
     * @return
     */
    @Override
    public ResponseResult listByCollection(WmMaterialDto dto) {
//        判断用户是否登录
        User user = MediaThreadLocalUtil.get();
        if (user == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
//        构建查询条件
        LambdaQueryWrapper<WmMaterial> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(WmMaterial::getUserId , user.getUserId());
//        判空
        if (dto.getIsCollection() != null){
            queryWrapper.eq(WmMaterial::getIsCollection , dto.getIsCollection());
        }
//        根据创建时间倒序排列
        queryWrapper.orderByDesc(WmMaterial::getCreatedTime);
        IPage<WmMaterial> page = new Page<>(dto.getPage(), dto.getSize());
        IPage<WmMaterial> iPage = this.page(page, queryWrapper);
//         构建通用响应
        PageResponseResult responseResult = new PageResponseResult<>(dto.getPage(), dto.getSize(), iPage.getTotal(), iPage.getRecords());
        return responseResult;
    }
}
